Environmental and anthropogenic determinants of vegetation distribution across Africa

Vegetation variation across Cape Cod, Massachusetts: environmental and historical determinants

Aim We evaluate environmental and historical determinants of modern species composition for upland vegetation types across Cape Cod, Massachusetts, a region that supports numerous uncommon species assemblages that are conservation priorities. Location The study area encompasses the entire peninsula of Cape Cod, Massachusetts, USA. Methods Historical changes in land-use and land-cover across the...

Comparison of Distribution of Virulence Determinants in Clinical and Environmental Isolates of Vibrio cholera

Background: The virulence of a pathogenic Vibrio cholerae is dependent on a discrete set of genetic determinants. In this study, we determined the distribution of virulence determinants among the clinical and environmental isolates of V. cholerae. Methods: The antibiotic resistance profiles of the isolates were determined using standard disk diffusion assay. PCR assay was performed to analyze t...

Environmental and Anthropogenic Degradation of Vegetation in the Sahel from 1982 to 2006

There is a great deal of debate on the extent, causes, and even the reality of land degradation in the Sahel. Investigations carried out before approximately 2000 using remote sensing data suggest widespread reductions in biological productivity, while studies extending beyond 2000 consistently reveal a net increase in vegetation production, strongly related to the recovery of rainfall followin...

a comparative pragmatic analysis of the speech act of “disagreement” across english and persian

the speech act of disagreement has been one of the speech acts that has received the least attention in the field of pragmatics. this study investigates the ways power relations, social distance, formality of the context, gender, and language proficiency (for efl learners) influence disagreement and politeness strategies. the participants of the study were 200 male and female native persian s...

Anthropogenic Metabolism and Environmental Legacies